Self-grinding valve.



W. MAHONY.

SELF GRINDING VALVE.

APPLIGATION FILED DEC. 16, 1913.

1,1 1 1,545. Patented sept. 22, 1914.

TRNEYS NITD i f I I WILLIAM MAHONY, ornamnroiv; oNrn-Idcanmng sELF-GINDING'VALVE; 1 i f '-1 1,111,545.v specifwaaondwaasheid.. Patented sepeze, 1914 ,;q Application aieanecember 16,1913; seriauieso'vgoia T0 all whom 'it may concern: iugm-ranged vparallel `with one; another, mayff'- Be it known that I, WILLIAM MAHONY, a he connected by s'pur gears E secure'dtherecitizen of the United States, and resident on and intermeshing throughout thenseres'yl ,0f HfimltOn, in the ProvinceA of' Ontario, these spur gears being 0f suliicient width to l -5 in the -Dominion of Canada, have invented permit of the seating and unseating of yt e T3121" an Improvement in Self-Grinding Valves, valves .without disengagement. In this l of which the following is a Speecaton. manner .th'several valve Stems may be r0.-v My pre-sent invention vrelates to selftated by 'rotary movement transmitted. to grinding valves and particularly to the one thereor either during the operationof 10 Valves of' internal combustion engines and the engine or while the parts arent rest andivv i of the type generally known as uppet' in Orderv to effect this resultV in a simple (55.. valves, having rotatable and longitudinally -manner preferably mount a. vertical shaft v mo'vable Stems' mounted in parallelism, it F through the 'crank case A o theen e', being't-lie object of my invention to so conthe upper exterior portion of this shaft xivif 15 neet the valvfe stems by gearing as that they ing a spur gear. F loosely mounted thereon may be longitudinally moved b the usual and in mesh with the spur gear Eef the atl-"70 cam tappets and rotation app ied to one jacent valve stem B,-t he upperportion of thereof will be communicated throughout Shaft F also SuE ortin splined clutch the series. memberG whic maygbembved", through 2o A further object of my invention is to 4the medium of albell crank leverhGrendcoml provide i-clutch controlled connection benecting rod' g .so as to throw the clutch 'N5l tween one of the valve stems and a source' of member G intO ngfl'gm'entwith the upper power,' preferably the main or crankv shaft Aclutch face fof the spur-gear F from adisl-y of' the' engine. x .tant`point,'at the wilhandfunder the immer 25 These objects and their resulting advandiate control, f the operatori? TheshaftF' c tages-will be better .understood from the is driven through u worm' wheel f' mouhted 80 accompanying description in which refer- V'upon its lower inner'portion 'and in enence is made to the drawing, forming a part gagement with'. a wormy H secured upon,

' of this specification and in which, the 'mainfshaftHjq 30 Figure l is a side elevation of-anengine Thus'the severall valves may .be ickly to which my improvements have been a-p- `and electively .regroundiicleaned vanil seat- 85 plied, and Fig. Q, is an endfclevation, on an ed at various timesduring .the operation of enlarged scale, and partly broken away and the engine and' \1nder tliev control of the in section to illustrate certain parts. operatorfwithout thefuschofvk an additional 35. Referring now tothcse figures A indisource of power, althoughit is within the' rates the several cylinders of an engine in province of the presentimvntion to rotate so connection with which a plurality of valves the several valvestei'us'throughthe use o f l lindicated in dotted lines in Figlare suitable connections from he electricor air i utilized.` these valves having their stems B motor of a. selflstarter on a'utom'obilesand- 40. mounted tomove vertically and longitudiother'motor `vehicles ifit is so desired.;

nally so that the. valves may be moved I claimz 1 Y f I away from' and onto.their seats C, oueot" l.. ln au internal combustion engine, the which is shown in Fig. 2; '.lhe several seats cmuhimxtion .f valves having rotatable and of the valves may be suitably formed, for lonsri'tluliually .movable stems arranged 45 instance threaded into position as 'illusiarra'llcl withfone another, spur kgears se- 'trated in Fig. 2 in order that they may be cured on each of' sind stems'nnd in mesh 100 readily removed for gnu'posesof repair and with one another therchrtuzmn. and formi-ng sulmtitution. 'lhe several stems l are pro-V a gearing connecting *the stcnisand adapted vided .with springs vfor umiutaining the to nl le'ct their rotation and iiermitof their 50 valves 'B on their seal' and permit o f their longitudinal movement at the same time, "longitudinal movement. under actuation of :vul clutch control vconnections'. for rotating 106 lthe usual cam tappets D om` of which is 'mu-of the valve stems, 'for' the purpose de` f shown in Fig. 2. Tt will also he noted that scribed. the .several Vstems B are rotatable' and hey 2. ln an internal comhustionenginc the combination of a. plurality of valves having and clutchcontrolled connections for im rotatable and longitudinally movable stems parting rotation to onev of the said valv arranged parallel with one another, interstems, for the purpose described.'

meshing spur gears securedvupon the said WILLIAM MAHONY. 5 valve stems and of suiiicient width to permit Witnesses:

`Vof longitudinal movement of said valve ELvA FRENCH,

ystems without disengaging the said gears, t NORMAN R. KAY. 

